Status:

COMPLETED

Incretin Effect and Use After Clinical Islet Transplantation

Lead Sponsor:

University of Alberta

Collaborating Sponsors:

Juvenile Diabetes Research Foundation

Conditions:

Type 1 Diabetes

Eligibility:

All Genders

18-70 years

Phase:

PHASE2

Brief Summary

We aim to study if the administration of medications to increase the secretion of hormones from the intestines can improve glycemic control, reduce insulin use and promote β-cell regeneration/expansio...

Detailed Description

This is a single centre non-randomized pilot study. Subjects will be recruited from the current cohort of islet transplant recipients at the University of Alberta. The primary objective of the study ...

Eligibility Criteria

Inclusion

  • Inclusion Criteria
  • Subjects must meet the following criteria to be enrolled in this study:
  • Male or female, aged 18 to 70, inclusive, who is a previous islet transplant recipient (at least 3 months since last islet transplant) and who received their transplant at the University of Alberta.
  • Insulin independent for 3 months or longer after islet transplant.
  • Early graft dysfunction as defined by:
  • HbA1c \>6% (but less than 7.5%); or
  • fasting glucose \> 7 mmol/L (126 mg/dl); or
  • random glucose \> 10 mmol/L (180 mg/dl), and
  • Total insulin use of \< 10 units/day.
  • C-peptide positive.
  • Able to provide informed consent.
  • Exclusion Criteria:
  • Subjects who meet any of the following criteria will be excluded from the study:
  • Unable to provide informed consent.
  • Prior therapy with sitagliptin or a proton pump inhibitor in the preceding 2 months.
  • Vulnerable populations (i.e. cognitively impaired, pregnant women, residing in institutions, University of Alberta students or employees under the supervision of any of the investigators).
  • Children, adolescent or patients with a "contraindication" or "warning" listed in the package insert of any of the study drugs:
  • Hypersensitivity to sitagliptin or pantoprazole for any component of the formulation.
  • Renal disease or renal dysfunction (as suggested by serum creatinine levels ≥ 136 µmol/L (males), ≥ 124 µmol/L (females) or abnormal creatinine clearance; or estimated by Glomerular Filtration Rate (GFR) \<50 ml/min/1.73m2).
  • Acute or chronic metabolic acidosis with or without coma (including diabetic ketoacidosis).
  • Uncontrolled hyperglycemia
  • Any subject that in the opinion of the investigator would not be a good candidate for study participation.

Exclusion

    Key Trial Info

    Start Date :

    October 1 2008

    Trial Type :

    INTERVENTIONAL

    Allocation :

    ACTUAL

    End Date :

    December 1 2011

    Estimated Enrollment :

    8 Patients enrolled

    Trial Details

    Trial ID

    NCT00768651

    Start Date

    October 1 2008

    End Date

    December 1 2011

    Last Update

    June 18 2015

    Active Locations (1)

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    1

    University of Alberta - Clinical Islet Transplant Program

    Edmonton, Alberta, Canada, T6G2C8